DE69713269T2 - Device for uniformly illuminating the dial of a display device - Google Patents

Device for uniformly illuminating the dial of a display device

Info

Publication number
DE69713269T2
DE69713269T2 DE1997613269 DE69713269T DE69713269T2 DE 69713269 T2 DE69713269 T2 DE 69713269T2 DE 1997613269 DE1997613269 DE 1997613269 DE 69713269 T DE69713269 T DE 69713269T DE 69713269 T2 DE69713269 T2 DE 69713269T2
Authority
DE
Germany
Prior art keywords
dial
display device
uniformly illuminating
illuminating
uniformly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE1997613269
Other languages
German (de)
Other versions
DE69713269D1 (en
Inventor
Jean-Charles Poli
Joachim Grupp
Juan Manuel Teijido
Hans Peter Herzig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asulab AG
Original Assignee
Asulab AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asulab AG filed Critical Asulab AG
Application granted granted Critical
Publication of DE69713269D1 publication Critical patent/DE69713269D1/en
Publication of DE69713269T2 publication Critical patent/DE69713269T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G04B19/30—Illumination of dials or hands

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Planar Illumination Modules (AREA)
DE1997613269 1997-02-20 1997-02-20 Device for uniformly illuminating the dial of a display device Expired - Lifetime DE69713269T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19970102767 EP0860755B1 (en) 1997-02-20 1997-02-20 Device for uniformly illuminating the dial of a display apparatus

Publications (2)

Publication Number Publication Date
DE69713269D1 DE69713269D1 (en) 2002-07-18
DE69713269T2 true DE69713269T2 (en) 2003-03-06

Family

ID=8226506

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1997613269 Expired - Lifetime DE69713269T2 (en) 1997-02-20 1997-02-20 Device for uniformly illuminating the dial of a display device

Country Status (2)

Country Link
EP (1) EP0860755B1 (en)
DE (1) DE69713269T2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1050711B1 (en) 1999-05-07 2009-07-29 Asulab S.A. Device for oriented surface illumination by a waveguide using microprisms
EP1094373B1 (en) 1999-10-19 2009-01-28 ETA SA Manufacture Horlogère Suisse Electroluminescent device for dial illumination
US6487143B1 (en) * 1999-10-19 2002-11-26 Eta Sa Fabriques D' Ebauches Electroluminescent lighting device for a dial
TW574638B (en) 2002-03-05 2004-02-01 Asulab Sa Method and device for lighting an electronic or electromechanical apparatus
JP2013501210A (en) * 2009-06-18 2013-01-10 ウーテーアー・エス・アー・マニファクチュール・オロロジェール・スイス A watch with a special aesthetic effect
GB201004810D0 (en) * 2010-03-23 2010-05-05 St Microelectronics Res & Dev Improvements in or relating to optical navigation devices
JP2021113775A (en) * 2020-01-21 2021-08-05 セイコーエプソン株式会社 Watch

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR889069A (en) * 1941-04-10 1943-12-30 Askania Werke Ag Lighting device for measuring or indicating instruments, with indexes and dial graduation appearing in light on a dark background
CH336763A (en) 1957-02-13 1959-02-28 Henri Sandoz & Fils Timepiece comprising at least one source of electric light
FR1285829A (en) * 1961-04-07 1962-02-23 Lampes Sa Light distribution lens system
CH1923970A4 (en) 1970-12-28 1973-12-14
GB2052114B (en) * 1980-06-27 1983-03-16 Timex Corp Dial illuminator for analogue timepiece
JPS5924284A (en) * 1982-07-31 1984-02-07 Orient Watch Co Ltd Apparatus for illuminating dial of watch
US4908739A (en) 1988-09-29 1990-03-13 Andre Brien Light diffusing ring for wristwatch
JPH03231118A (en) * 1990-02-06 1991-10-15 Nippondenso Co Ltd Dial face of meter
JP3397874B2 (en) * 1994-03-09 2003-04-21 シチズン時計株式会社 Mobile watch lighting system

Also Published As

Publication number Publication date
EP0860755A1 (en) 1998-08-26
DE69713269D1 (en) 2002-07-18
EP0860755B1 (en) 2002-06-12

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition